The pair, who dated during the filming of “The Bounty Hunter” last summer, presented the best screenplay award together at the Golden Globes on Sunday night and repeatedly posed for photographs together. But a spy tells Page Six that the real action was backstage.

“After they presented, they were drinking Moet backstage,” says our spy. “At one point, they were making out in the kitchen. They were attached at the hip all night. They definitely seemed very couple-y. Producers for the show were actually laughing about it over their walkie-talkies.”

Reps for Aniston and Butler couldn’t be reached as their offices were closed for Martin Luther King Jr. Day.

At “Inglourious Basterds” and “Nine” producer Harvey Weinstein‘s after-party at the Beverly Hilton, sponsored by Martini & Rossi, “Basterds” director Quentin Tarantino was chatty and upbeat although he didn’t win for best picture or best screenplay. He held court with the movie’s stars, Diane Kruger, Eli Roth, Melanie Laurent and Christoph Waltz, plus Kruger’s boyfriend, Josuhua Jackson. Tarantino “was in a really good mood,” says a witness. “He was one of the last people to leave the party.”

The cast of “Nine,” on the other hand, was more fractured. While Kate Hudson, Fergie, Daniel Day-Lewis and director Rob Marshall hung out together in the VIP area, Nicole Kidman and husband Keith Urban spent most of the evening on the opposite side of the room. “She did not appear to be enjoying herself,” says our witness.

Beleaguered NBC also hosted a party in the hotel, although it was mostly devoid of stars. “The Office” star Steve Carell was a no-show, while co-star Jenna Fisher and Tina Fey of “30 Rock” didn’t stay long. Peacock boss Jeff Zucker — under fire over the Jay Leno–Conan O’Brien mess he made — decided at the very last minute not to fly out for the Globes.